A.C.
I am sorry you are having fertility problems. What a shock it must be after already having a son. I hope you don't mind, but I just wanted to mention something you might not think of at this time...
My husband and I both had fertility issues and our doctors immediately suggested all sorts of tests, medications, etc. We started the fertility treatment path until one day on the way home from the specialist, I thought, what the heck am I doing? I hadn't even thought about adoption and none of our doctors had mentioned it either. We immediately dumped all the fertility plans and began the adoption process. I know it is a personal decision, but we just thought, why spend all this time, pain (emotional and physical), and money on fertility treatments when there are so many precious children out there waiting for parents.
We adopted our daughter 2 1/2 years ago. Last year, I gave birth to a wonderful boy (yeah, I know, "happens every time"). Now that I have "one of each" I am so glad we had fertility problems. If we hadn't we never would have adopted our precious girl.
So, don't forget about adoption. It's such a wonderful way to add your family. If you have any questions, please feel free to contact me. You could also follow this link to the agency we used http://www.holtinternational.org/adoption/
I wish you the best with your fertility appointments. I know how stressful they can be. I hope everything turns out well for you and you are blessed with another child.